Cardiogenic oscillations: a potential mechanism enhancing oxygenation during apneic respiration.
Adequate oxygen uptake by the lungs for prolonged apneic periods is possible even in the absence of respiratory movements provided that 100% O2 is applied at the airway opening. The mechanism by which adequate gas mixing takes place during this apneic respiration is not entirely clear. We propose that a major mechanism producing O2 uptake during apnea is the enhanced gas mixing secondary to airflow generated by the beating heart.
D001049:Apnea / Q000503:physiopathology*; D002245:Carbon Dioxide; D006321:Heart / Q000503:physiopathology*; D006801:Humans; D008168:Lung / Q000503:physiopathology*; D008954:Models, Biological; D009991:Oscillometry; D010101:Oxygen Consumption; D012119:Respiration
D002245:Carbon Dioxide